题目内容
9.Don't forgetto turn(turn) off the light before you leave the room.分析 离开房间前别忘了关灯.
解答 答案:to turn.这里是说别忘了去关灯,关灯这件事还没有做,故用forget to do sth表示忘了去做某事,故答案是to turn.
点评 forget to do 忘记要去做某事.(未做) forget doing 忘记做过某事.(已做)
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